DVC (Domain Validation Certificate) is a method used to validate the ownership of a domain before issuing a certificate for it. The purpose of a DVC is to prevent fraudulent requests for certificates, which can lead to unauthorized access to sensitive information or the spread of malware.
When a request for a certificate is made, the certificate authority (CA) will send an email to the domain owner or an email address associated with the domain. The email will contain a unique link that the recipient must click on to verify their ownership of the domain.
Alternatively, the CA may also send a code to a specific file or location on the domain's website that the recipient must place there to prove their ownership. The file may be a specific file name or an HTML file with specific content.
Once the domain owner has verified their ownership, the certificate authority will issue the certificate. This certificate is then used to encrypt data transmitted between the website and the user's browser.
In summary, DVC is a process that ensures that the entity requesting a certificate for a domain is the legitimate owner of that domain. This process involves sending an email to the domain owner or requiring them to place a specific file on the domain's website to prove ownership, after which the certificate authority will issue the certificate.
